水泥聚苯模壳格构式混凝土墙体抗震性能的芯孔尺寸影响试验研究  

Experimental Study on the Influence of Core Hole Size on the Seismic Performance of Expansive Polystyrene Granule Cement Latticed Concrete Wall

作　　者：李小军[1,2] 曹鑫雨 唐柏赞 LI Xiaojun;CAO Xinyu;TANG Baizan(Faculty of Architecture,Civil and Transportation Engineering,Beijing University of Technology,Beijing 100124,China;Institute of Geophysics,China Earthquake Administration,Beijing 100081,China;Engineering Research Center of Railway Environment Vibration and Noise,Ministry of Education,East China Jiaotong University,Nanchang 330013,Jiangxi,China)

机构地区：[1]北京工业大学城市建设学部,北京100124 [2]中国地震局地球物理研究所,北京100081 [3]华东交通大学铁路环境振动与噪声教育部工程研究中心,江西南昌330013

出　　处：《地震研究》2022年第1期1-7,共7页Journal of Seismological Research

基　　金：国家自然科学基金项目(51908216);江西省主要学科学术和技术带头人培养计划项目(20204BCJL23032);江西省自然科学青年基金项目(20202BAB214026)联合资助.

摘　　要：为研究芯孔尺寸对传统型水泥聚苯模壳(EPSC)格构式混凝土墙体抗震性能的影响,对2个传统型EPSC格构式混凝土墙体原型试件进行低周往复荷载试验,2个试件芯孔直径分别为160 mm和120 mm;对比分析了2个试件的破坏特征和承载力、滞回曲线、骨架曲线、刚度退化等抗震性能。结果表明:芯孔直径大的复合墙体具有更优良的抗震性能;芯孔直径增加,复合墙体的承载力、抗侧刚度和耗能能力均有不同程度的提高。In order to study the influence of the core-hole size on the seismic performance of the traditional expansive polystyrene granule cement(EPSC)latticed concrete walls,two traditional EPSC latticed concrete walls are subjected to lateral cyclic loading.The core-hole diameters of the specimens are 160 mm and 120 mm respectively.By the test,the failure mode and bearing capacity,hysteresis curve,skeleton curve,stiffness degradation and other seismic performance of each specimen were compared.The results show that the composite wall with a large core-hole diameter has better seismic performance;as the core-hole diameter increases,the bearing capacity,lateral stiffness and energy dissipation capacity of the composite wall improve to some degree.

关 键 词：芯孔尺寸 水泥聚苯模壳(EPSC) 格构式混凝土墙体 拟静力试验 抗震性能 

分 类 号：P315.924[天文地球—地震学] TU398[天文地球—固体地球物理学]